Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
|
|
|
1.
|
Rocks
are affected by heat and pressure. One source of this pressure is a. | energy from the
Sun. | c. | the mass of
overlying rocks. | b. | burning of fossil fuels. | d. | the decomposition of organic
materials. | | | | |
|
|
|
2.
|
Compared to rocks in Earth's crust, rocks in the mantle are more a. | dense. | c. | granular. | b. | mineral-rich. | d. | porous. | | | | |
|
|
|
3.
|
Which
kind of rock is formed when volcanic lava cools? a. | sedimentary | c. | igneous | b. | metamorphic | d. | magma | | | | |
|
|
|
4.
|
When
an igneous rock is changed by the action of heat and pressure it becomes a. | granite. | c. | a metamorphic
rock. | b. | limestone. | d. | a sedimentary rock. | | | | |
|
|
|
5.
|
Extrusive rocks are formed by a. | magma cooling on Earth's
surface. | c. | the attraction
of magnetic particles. | b. | pressures inside Earth. | d. | tidal deposits of sediment. | | | | |
|
|
|
6.
|
Igneous rocks are classified by where they are formed. Which type of igneous rock
forms underground? a. | extrusive | c. | volcanic | b. | intrusive | d. | ash | | | | |
|
|
|
7.
|
The
density is highest in Earth's a. | crust. | c. | outer core | b. | mantle. | d. | inner
core | | | | |
|
|
|
8.
|
Sedimentary rocks are not found on the Moon because a. | there is no
silicon on the Moon. | c. | the Moon's
gravity is too weak. | b. | lava flows are missing from the
surface. | d. | there is no
weathering on the Moon | | | | |
|
|
|
9.
|
When
rocks undergo weathering, they become a. | magma. | c. | sediment. | b. | igneous
rocks. | d. | volcanic
cones. | | | | |
|
|
|
10.
|
When
magma reaches Earth's surface it becomes a. | gas. | c. | energy. | b. | steam. | d. | lava. | | | | |
|
|
|
11.
|
Sedimentary rocks can be converted into magma by undergoing which of the following
processes? a. | weathering and
erosion | c. | heat and
pressure | b. | cooling and crystallization | d. | compaction and cementation | | | | |
|
|
|
12.
|
Rocks
found on Earth are generally classified as sedimentary, metamorphic, or igneous. On which basis are
these classifications made? a. | where the rocks are found | c. | the color and shape of the rocks | b. | how the rocks
were formed | d. | the chemical
composition of the rocks | | | | |
|
|
|
13.
|
| | Use the rock
cycle diagram below to answer this question. | | |
According to the
rock cycle, any rock may be affected by all of the following processes except a. | weathering and
erosion. | c. | heat and
pressure. | b. | melting. | d. | evaporation. | | | | |
|
|
|
14.
|
A
deep well or mine shaft goes through which layer or layers of Earth? a. | crust
only | c. | crust and
mantle | b. | mantle only | d. | mantle and core | | | | |
|
|
|
15.
|
Earth's core is mainly composed of a. | iron and aluminum. | c. | iron and nickel. | b. | silicon and
hydrogen. | d. | silicon and
oxygen. | | | | |
|